{
  "bibcode": "2013GCN.14672....1K",
  "body": "J. Kelemen (kelemen at konkoly.hu) on behalf of the GRB OT observing program\nat the Konkoly Observatory.\n\nStarting on the evening of 15/05/2013 we observed the field of GRB 130427A\n(Maselli et al., GCN 14448) 18.5435 days after the burst, using a 60/90/180 cm\nSchmidt telescope located at the Mountain Station of the Konkoly\nObservatory equipped with an Apogee CCD camera through R filter. On the coadded \nR images (total exp.time 1120 sec) we detected the OT and the host galaxy as\nwell. \nBased on the nearby UCAC-4 stars we provide 20.90 +/- 0.05 magnitude in the R\nband for the OT. The brightness of the host galaxy was not subtracted. \n\ntime from GRB    exp    filter     Mag.       \n\n18.5435        1120 s     R       20.9 +/-0.05",
  "circularId": 14672,
  "createdOn": 1368906996000,
  "email": "kelemen@konkoly.hu",
  "subject": "GRB 130427A: Konkoly optical observations",
  "submitter": "Janos Kelemen at Konkoly Obs/Hungary  <kelemen@konkoly.hu>",
  "eventId": "GRB 130427A"
}